Many shrimpers use UGF's...modified with canisters. Can intake comes from lift tube and output with spraybar. Normal function with this is with an airstone in lift tube. This isnt strong enough to actually pull the waste out from underneath the substrate hence the muddy junk that collects. With a can it can actually pull thru the substrate and be removed. If using a buffering substrate I think it shortens the life span of buffering capabilities tho.

Many shrimpers use UGF's...modified with canisters. Can intake comes from lift tube and output with spraybar.

Most of us shrimpers use some sort of small DIY PVC or small plate style UGF. One that covers your entire base removes a lot of the biological goodies that we put down when starting out tanks.

Quote:

Originally Posted by Merth

With a can it can actually pull thru the substrate and be removed. If using a buffering substrate I think it shortens the life span of buffering capabilities tho.

I could go either way on this, again most of us are using RO water so its already pretty on spot for the parameters we are looking for. (minus any minerals for shrimp) This limits the amount of work the substrate has to do to buffer the water. So a undergravel isnt really going to shorten the life of the substrate if you are putting in the correct water to begin with.

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